After opening April 28 with a blistering first five weeks, the $2.7 billion Wynn Las Vegas megaresort reported quarterly results late Monday that were more in line with what analysts had been expecting.

It's hard to tell who's more excited about Las Vegas mogul Steve Wynn's soon-to-be-opened resort: gamblers or investors. Gamblers are giddy because the place is the most expensive casino ever. Investors are giddy, too, and so far appear to be the biggest gamblers of all.

One month before Steve Wynn's Las Vegas comeback swings into high gear with the opening of his company's first luxury casino resort, the Strip mogul is already moving ahead with plans to expand his new empire.

Shares of Las Vegas Sands surged more than 50% Wednesday as the casino operator debuted on the New York Stock Exchange and investors rushed to grab potential profit pipelines in Las Vegas and the Chinese enclave of Macau.